clc;
%x = -10:0.01:10;
x = linspace(-10,10,500);
y = lineaxy(x,-pi,pi,3);

%plot(x,y,"r","linewidth",4);
plot(x,y,".r");
grid on;
xlabel("X","fontsize",20);
ylabel("Y","fontsize",20);
title("Funcion Rectangular","fontsize",20);
text(-pi,-2.8,'-\pi',"fontsize",16);
text(pi,-2.8,'\pi',"fontsize",16);